Quote:
Originally Posted by Teched3
You should be more concerned with matching the torque curves than free speed. If not close, one motor will work against the othe, and reduce power.
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If you gear to match free speeds, both motors will be producing torque in the same direction over the full range of voltage.
If you gear to match stall torques, then above a certain speed one of the motors will be acting as a generator and will absorb power from the other motor.